Title :
An Ultra-Wideband Common-Mode Suppression Filter Based on S-DBCSRR for High-Speed Differential Signals
Author :
Hao-Ran Zhu ; Jun-Fa Mao
Author_Institution :
Key Lab. of Minist. of Educ. for Res. of Design & EMC of High Speed Electron. Syst., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
In this letter, an ultra-wideband common mode filter is proposed for high-speed differential signal transmission. By etching a slot in the inner patch of a double slit complementary split ring resonator (S-DBCSRR), the noise rejection bandwidth can be expanded. The equivalent circuit model and surface current distribution are given to explain the working principle of the filter. From the simulated and measured results, it is found that the fractional bandwidth of the presented filter is 92% with a noise suppression level of 20 dB, and the differential signal can propagate with little degradation.
Keywords :
current distribution; equivalent circuits; filters; interference suppression; ultra wideband technology; double slit complementary split ring resonator; equivalent circuit model; high-speed differential signal transmission; noise rejection bandwidth; noise suppression; surface current distribution; ultrawideband common-mode suppression filter; Bandwidth; Etching; Inductance; Microwave circuits; Noise; Power transmission lines; Ultra wideband technology; Common-mode (CM) filter; complementary split ring resonator (CSRR); differential signal; wideband suppression;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2015.2400914
